Spurious-coin detector for slot-machines.



I. w. KLIHEMAN.

SPUBIOUS COIN DETECTOR FOR SLOT MAGHIHES.

APPLICATION FILED 001.12, 1908.

911,247. I Patented -Feb.'2; 1909.

2 slinnwssnnm 1.

F. W. KLINEMAH. SPUBIOUS com DETECTOR FOR SLQT MACHINES.

F .APPLIOATIOI rinnn 0m. 12, 1908.

Patented, Feb. 2, 1909.

2 SHEETS-SHEET 2.

a To all whom it may concern:

" UNITED STATES PATENT OFFICE.

FREDERICK w. KLINEMAN, or CHIQAGO, ILLINOIS, AssrcNoR OF ONE-HALF T0 J.'G. BOSWELL, or cmcaco, ILLINOIS.

SPURIOUS-OQIN DETECTOR FOR SLOT-MACHINES.

Specification of Letters Patent.

Patented Feb'. 2, 1909.

Application and 0mm 12, 190a Serial No. 457,212.

Be it known that I, Fnnnnnrcx W. KLrnn- MAN, a citizen of the United States, residing at Chicago, in the count of Cook and State of Illinois, have invente new and useful Imgrovements in S; urious-Coin Detectors for lot-Machines, 0 which, the followingis a specification, reference being had to the drawings, forming a art thereof. r

The purpose 0 this-invention is to provide, for com-operated or so-called slot machines, a s urious-coin detecting device constituted 0 the coinchute or pathway and guards of the coin in its entrance and ad vancetoward the coin receptacle orposition at which it may become an element in the means for operation of the machine.

It consists of the features of construction shown and described as indicated in the claims.

In the drawings z-Fi ure 1' is a side elevation of a device embo yin this invention, same-being shown mounte on a case for a mechanism which is to be .coin-o erated. Fig. 2 is a View, of the device with t e front plate partly brokenaway showing theinterior. Fig. 3 is a section atthe line 3-3 on Fig. 2. Fig. 4 is a view similar to Fig; 2, showing a modification.

The device showncontaining the coin chute or path comprises a front plate, A, and a back plate, B, spaced apart y p and G which are shaped and disposed so that the edges of some of them form the edges of the coin chute or athwa'y between the plates, A and B. T 's c in chute or pathway comprises a portion, 2, leading from the entrance mouth, 1, at whichthe coin is deposited in a downwardly sloping advancing irection, a descending pdrtion, 3, leading to a horizontal portion, 4, and also a horizontal portion, 5, above the portion, 4, and leading off from the descending portion, 3.

The terminal horizontal portion, 4, leads to the case, D, for the mechanism which may be operated by the coin. This mechanism does not pertain to the present invention and is not illustrated in detail; It ma be any mechanism which may be operate or whose operation may be controlled by the discharge 0 coin therelnto from the discharge end, 6, of the coin chute. for spurious coins which are discarded thereto as hereinafter explained, and are dis charged therefrom at the final discard The branch portion, 5, is

mouth, 7, of said branch. Between the two plates, A and B, there is mounted a pusher,

having a stem, F extending out to the right and protruding from between the plates, A and B, at the right-hand end. A spring, G, is provided for o eratin upon this pusher, holding it yielding y at t e most retracted p ositon,that is, with the stem or handle, protruded to the maximum beyond the right-hand end of the plates and ex osed for pushing the pusher inward a ainst t e resistance of the spring at whic position it is stopped by the filler, C The forward or advance edge of this pusher constitutes the back edge of the descending portion, 3, of the coin chute; It has a rearward extension, F extending fromthe upper corner, f back parallel with the handle and path of sliding movement under the filler, C, with whose under edge the extension, F coincides, and be-, yond which the pusher protrudes when it is thrust forward for action upon the coin hereinaiter described, the.1ength of saidextension being suflicient to cause the end to be still en 'aged under the said filler, C, when the pu her is thrust forward to the limit of its path of movement.

H is a magnet mounted upon the rear side i of the device against and preferably protruding through the rear plate, B, 'so that its inner face is substantially flush with the inner or forward surface of said rear plate, This magnet is located at or opposite the descending portion, 3, of the coin path-in such position that the upper portion ofthe pusher, F,

travels past it when it is thrust forward for operating on the. coin.. The pusher, F, is preferably provided with a projection form' ing an u wardl facing coin sup 'ortmg shoulder, f, ocate preferablysomew at less 9 than-the diameter of the coin below the u per'corner, f, of the usher. The filler, which is inte osed etween the true-coin branch, 4, anil the discard or spurious-coin.

branch', 5, has its upper corner, 0, at the end 100 toward the pusher perferably slightly lower than the shoulder, f, of the pusher, for reason hereinafterex lained. The lower edge of the fil1er,C, w 'ch forms the closure or guard of the coin chuteat the up er side has the 1 portion, a, moderately inclined from horizontal for a distance partly overhanglng'the descending ortion, 3, of the coin ath. The

upper end 0 the magnet, H, whic forms the back wall of the upper part of the descendmg 1 20 ment being at such an angle to the inclined portion, 3, of. the coin chute extends high enough to be lapped a little by a coin which I has rolled around the corner, 1', far enough so a washer or .metal has been deposited instead of a true that the diameter of the com running from said corner lies below-a line from said corner extending across the coin path to the nearest point of the o posite edgejof'the-filler, C. If sk of iron or other magnetic coin, theattraction of the magnet is designed to halt it when it has lapped the magnet at the position indicated,-that'is, when the diameter extending from thebeari of the coin on the corner, f, lying a little elowa line from the same corner to the nearest oint of said inclined opposite edge, c. When halted in this osition the pusher, being thrust forward t rough the descending portion, 3, of the coin path, will push the coin across'said descending portion, the moveedge, 0 that the coin will not be jammed or pinched between the pusher and said edge,

- u't will be wedged downward by the inclined 'movement, therefore, of the usher piplerat- .ingupona spurious coin whic has a ered to the magnet will-preventit from passing down into the entrance to the truecoin branch; and a push which exceeds half the diameter of the coin,. car 'ngthe center of the coin past a direct line t ough the corner,

- c, of the filler," 03, will cause the coin, even if 'it were then released from the coin would sti the magnetyto fall so as to roll into the discard branch, 5, and, be dischar ed at the'disc'ard mouth 6, evenif the pus er should beretracted after such half stroke. The coin-supporting shoulder, f, is to form a partially-supporting 4.

seat for the coin so that .if u

on its bein pushed along the P g ath the action of gravity should cause it to escend as well asto move forward in the direction in which it is pushed, its descending tendenc would be checked bfy the support aflorde by the shoulder, so t at itjwould in any event be certain to be pushed into the discard branch. In order that if the ma net should be very weak, or the'adhesion o the s urious coin should be broken intentionall y jarring the device pass into the discard chute-and be pushed out, it is preferable to locate the shoulder, f, as described, a trifle higher than the corner, 0 of the filler, C, so;

that the coin, even if jarred loose from the magnet, falling on the shoulder and being deflected onward by it, and still descending slightly in such deflection, would lod e on the upper ed e of the filler, C and rol into the discard c ute. A true coin deposited in the slot will roll down the ortion, 1, and around the corner, f, on which it will be kept by the opposite portion, 8, of the edge of the filler, G which is shaped in the arc of a circle about that corner as a center, until its course becomes distinctly downward; and from thence passing out from under the portion, 8, of said edge in the direction of a tangent thereto, it will follow the true path of a projectile, indicated by dotted line, 9, passing over the shoulder, f, without striking it, and entering the gap between the end of the filler, C, and the edge of the pusher into the lower part of the descending portion, 3, of the chute, and be halted thus at the entrance into the true coin branch, 4. The

plate, A, is apertured and provided with a lass anel, opposite the said true-coin ranc 4, so that all coins standing therein be visible from a considerable distance to any one whose duty it ma be to watch the machine. The length of t is glass panel is sufficient to expose at all times atrleast two coins,-that is, one coin which may have halted at the foot of the descending portion, 3, of the chute and another between that position and the dischar e mouth. The pusher F, extending down a ong the entire rear edge of the descending portion, 3, forming the back wall of said rear edge to the bottom thereof. must be pushed in by the operator after he has deposited his coin in order to obtain an action of the mechanism which is controlle or released by the coin.

The machine will be first loaded with a single coin or slu deposited in the usual manner and move by the pusher onward in the horizontal true-coin branch, 4, so that it stands exposed to view through the glass panel at the farther end of said branch. he first coin do osited for obtai'nin the action of the mac ine, if a true coin ni fall into the rear end of this branch, 4, lodging therein immediately behind the reliminary coin with which the device has con loaded for starting, and the depositor of the coin, pushing the pusher inward, will cause the coin which he has deposited to push the coin in advance of it out so as to operate or release the mechanism, leaving the coin just deposited exposed to view, and when the pusher is retracted, a vacant space behind it or a new coin. Since this action of the pusher must be erformed in order to obtain any result, the epositor of a spur-ions 1nagnetic disk or washer, will, by this movement of the pusher cause his s urious coin to be e ected into the discard ranch, 5. If the spurious coin is non-magnetic,as, for example, a brass disk,it will fall into the the s urious coin ba'c true-coin branch, and the dc ositor can operate the pusher and obtainthe action of the machine, but the spurious coin which he. has p si ed will remain visible at the farther end of the true-coin branch, 4, durmg his entire use of the mechanism which he has thus operated or released, so that a watcher will be able from a distance to (he tect the fraud and cause the arrest of the color as to defeat detection by reason of the difference in color is steel or-polishediron,

Whose magnetic character will cause it to be discardedas described. Brass or copper will be discovered by their false color, and'the device Will thus aiiord means, for detecting substantially all spurious devices likely to be used, zinc or tm' only of the non-magnetic materials cheap'erthan the true nickel coins being di'fiicult to' detect by this means.

In the modification shown in Fig. 4 there is added to the features and devices above described a trapgate, K, pivoted at its upper end so as to depend into the ath of a spurious magnetic coin, -that. is, ihe pathwhich such coin should take under the action of the pusher, F, in order to be delivered through" the discard mouth. The pur oso of this trap gate is to prevent the ossi ility of forcing from the discard bl'ftIlGl into. the descending portion of the coin path to cause it to reach the true coin branch, 4, as'might possibly be done in the absence of such trap gate by means of a flat blade introduced through the discard mouth, 7, after the spurious coin has been driven by the pusher off the magnet into the discard branch, 5. With the trap gate hung, as shown,.- in position to be swung onward toward the discard mouth by the s urious coin when pushed by the pusher, ,t e spurious the resistance of the weight .Qof the gate, which must be lifted by an elbow lodged on the shoulder, f, of the pusher beforeit has been pushed off from or out of range of the influence of the magnet. Such lodgment,

however, will-support the slug so that itwill unfailingly continue to push the'trap gate before it until the center of the slug carried past the vertical line of the corner, 0, so that itcannot fail to fall beyond that corner into the discard branch, '5, when relieved from'the influence of the magnet. The trap gate is of such length that the coin descend inc; over the elevated corner, c, to the lower side of the discard branch passes outfrom.

under the end of the gate, which thereupon, by gravity, returns to its normal pendent pm sition behind the coin. The trap gate is stopped against swinging back toward the oint by the shoulder, 9, of

I pusher from this I the interval between the the filler, 0 an and the elevated corner, 0 of the filler, C is less than the diameter of the coin so that-the coin cannot be pushed back after it has once passed the gate.

I claim:-

chines comprising a coin chute in Whichthe com advances on edge," and comprising a descending part; a coin pusher whose edge.

such vdes :e1 1ding part of the latter; a magnet disposed at the side of the coin path at such true-coin branch leading ofi from such descending part below the discard branch;

2. A spurious coin-detector for slot machines comprising a coin chute in which the coin advances'on edge, and com rising a descending part, a pusher Whose c ge forms part of the edge wall of the chute at such descending part ofthe latter; a magnetdiss posed at the side of the coin path at such descending part of the chute, said chute com rising a discard branch leading off from the escending part opposite the oi'tion of the edge thereof formed by the pus er, and a true-coin branch leading off 7 from such descending part below the discard branch, said edge of the pusher having a'coin sup ortin' shoulder situated slightly above the evel o branch.

v 3. A spuriouss'coin detector for slot mavcomprising a coin chute in which the coin advances on edge, and comprising a descending part; a coin pusher Whose'edge forms part of the'edge wall of the chute at such descending part of the latter; a magnet comprising a I discard branch leading off from-said descending part'o posits the'porusher, and a true-coin branch leading-oil ii'orn such descending art below the discard ward from horizontal at a portion overhang ing said descending part. v

4. A spurious-coindetector for slot machines comprising a coin chute in which the coin advances on edge, and comprising a descending part; a coin pusher whose edge forms part of the edge wall of the chute at such descending part of the latter; a magnet disposed at the side of the coin path-at'such descending part of the chute, said chute comprising a discard branch leading off from said descending part opppositc the forms part of the edge wall of the chute atdisposed at the side of the coin'path at such descending part of the chute, said chute tion of the edge thereof ormed. by the branch, the upper e'ge wall of the-chute being sloped with moderate deflection down lower end of the gate at its pendent position 1'. A spurious-coin detector for slot ina.- I

descending part of the chute, said chute comprising a discard branch leading off front said descending part opposite the ortion of the edge thereof formed by the pusier, and a the bottom of the entrance to the discard portion of the edge thereof formed by the usher, and a true-coin branch leading off rom such descending part below the discard branch, the pusher having a horizontal extension whose upper edge is substantially parallel with the pushing movement, the upper edge of said extension running to'the upper corner of the pusher and being overhung by the lower or back edge wall of the portlon of. the chute antecedent to said descending portion. v

v 5. A spurious-coin detector for slot machines comprising a coin chute in which the com advances on edge, and comprising adescending part; a coin pusher Whose edge 1 forms part of the edge wall of the chute at such descending'part of the latter; a magnet disposed at the side of the coin path as such descending part of the chute, said chute comprising a discard branch leading ofi from said descending part opposite the portion of the edge thereof formed by the pusher; a true-coin branch leading off from such descending part below the discard branch, and means for guiding the pusher in a substantially horizontal direction for thrusting its said edge through the descending portion of the chute.

6. A spurious-coin detector for slot machines comprising a coin chute in which the com advances on ed descendmg part; a 00111 pusher whose edge e, and comprising a forms part'of the edge Wall of the chute at such descending part of the latter; a magnet disposed at the side of the coin path at such descending part of the chute, said chute "comprising a discard branch leading oil tially horizontal from said descending part opposite the ortion of the edge thereof formed by the pus er; a true-coin branch leading off from such descending part below the discard branch, means for guiding the pusher in a substandirection for thrusting its said edge through the descending portion of the chute, and a spring for retractin it.

7.' A spurious-coin detector for s ot ma,

' chlnes comprising a coin chute in which the coin advances on edge,

and comprising a descending part; a coin pusher whose edge Wall of the chute at such descending part of the latter; a magnet disposed at the side of the coin path at such descending part of the chute, said chute comprising a discard branch leading off from said descending art 0 osite the ortion of the edge thereof orme by the us er, and a truecoin branch leading o from such dlescending part below the discard branch, t e edge Wall of the chute opposite the true-coin branch. I Y

8. A spurious-coin detector for slot ma chines comprising a coin chute in which the coin advances on ed e, and comprising a descending part; a com pusher whose edge pusher being extended to form the back forms part of the edge wall of the chute at such descending art of the lattter; a magnet disposed at tile side of the coin path at such descending part of the chute, said chute comprising a discard branch leading olf from said descending art op osite the ortion of .the edge thereof ormed y the us ier, and a true-coin branch leading o from such descending part below the discard branch, the true coin branch having an exposed transparent side wall suflicient in extent for exposure to view therethrough of at least two coins.

9. A spurious-coin detector for slot machines comprising a coin chute in which the coin advances on edge, and comprising a descending part; a coin pusher whose edge forms part of the edge wall of the chute at such descending part of the latter; a magnet disposed at the s1de of the coin path at such descending part of the chute, said chute comprising a discard branch leading off from said descending art op osite the ortion of the edge thereof ormed by the pus ier, and a true-coin branch leading off from such descending part below the discard branch, the true-coin branch having an exposed transparent side wall sufiicient in extent for exposure to view therethrough of at least two coins, the pusher being extended to form the back wall of the chute opposite the truecoin branch, and the stroke of the pusher being substantially equal to one coin diameter. V

10. A spurious-coin detector for slot machines comprising a coin chute in which the coin advances on edge, and comprising a descending part; a coin pusher whose edge forms part of the edge wall of the chute at such descending art of the latter; a magnet disposed at the slde of the coin path at such descending part of the chute, said chute comprising a'discard branch leading off from said descending art opposite the portion of the edge thereof formed by the pusher; a trap gate in said discard branch, and a true-coin ranch leading off from the descending part below the discard branch.

11. A spurious-coin detector for slot machines comprising a coin chute in which the coin advances on edge and comprising a descending part; a com pusher whose edge forms part of the edge wall of the chute at such descending part of the latter; a magnet disposed at the side of the coin path at such descending part of the chute, sai chute comprising a discard branch leading off from said descending part opposite the portion of the edge thereo formed by the pusher; a truecoin branch leading off from such descending part below the discard branch, said edge of the pusher having a coin-sup orting shoulder situated slightly above the level of the bottom of the entrance to the discard branch, and a trap gate at the entrance to the discaa ,5 chines comprising a coin chute'in which. the

r such descending coin advances on edge and comprising a descending part; a coinpusher whose edge forms part of the edge wall of the chute at part of the latter; a magnet 10 disposed at the slde of the coin path at such descending part of the chute, said chute coma discard branch leading ofi from said escending art opposite the portion of the edge thereo formed by the pusher; a truecoin branch leading ofi from said descending part below the-discard mouth; a trap gate suspended 'at the entrance to the discard branch free to swing onward in the latter, and stopped against swinging back into said descen mg part.

In testimony whereof, I have hereunto set my hand, in the presence of two witnesses, at

Chicago, Illinois, this 6th day of October,

FREDERICK W, KLINEMAN. In the presence of- CHAS. S. BURTON, M. Gnn'rnnnn ADY, 

